Always face the front.
Open face helmet-don't yawn in summertime.
Kickstarting-no matter how well tuned the machine, it will not start until you have removed almost all of your clothing and are reduced to a sweaty puddle.Blip as you may,it will cut out just as you pull back on the last of your gear and refuse to restart until you disrobe once more.
You're most likely to get a puncture 1 mile PAST the last place you could get it fixed.
The spanner you took out your pocket and left on the bench cos you haven't used it in ten years is the one you're going to need 15 miles from here.
Paraffin nicked from roadmenders marker lamps can get you to the next petrol station.
No matter how good an idea it seems,dont wear your jacket backwards to keep out the rain.Explanations are useless.
Machinery can have a sense of humour.
Just when you think you have things figured out, grab a tape measure. You're about to discover how deep the abyss of stupidity really is.
Remember these days,in the future,these are as good as it got.